Only biotic factors influence plant growth

Abiotic factors have no effect on plant populations

Both factors work independently without interaction

Both factors work together to determine plant survival and growth

To establish dominance over other species

Because resources are unlimited

Because essential resources are limited

To create more biodiversity

Energy is created at each level

Energy is used for life processes and lost as heat

Predators don't need as much energy

Energy is stored equally at all levels

Primary succession occurs only in water

Secondary succession requires no soil

Primary succession begins on bare rock while secondary starts with existing soil

Secondary succession only occurs after fires

It has no effect on other trophic levels

It increases energy at higher trophic levels

It reduces available energy for all consumers

It only affects decomposers

10%

25%

50%

75%